This device from Takagi uses several pieces of optical equipment in one tower. The lamp uses a single switch to make it active. The view tester arm provision can be easily moved up and down while the counter-balancing will make this easy to control. The refractometer arm can move at a vertical distance of 200mm. The lower arm uses slitlamp microscopes and other common ophthalmological instruments. The device can utilize an electromagnetic clutch along with timing belts to make it easier for the device to move automatically or manually based on your preference. All parts of studying a patient's eyes can be covered when you use this special tool for ophthalmological reviews for all of your patients in your particular office.